21132111123112 has 48 divisors (see below), whose sum is σ = 44290406714400. Its totient is φ = 9442699860000.

The previous prime is 21132111123083. The next prime is 21132111123113.

21132111123112 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×21132111123112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (21132111123113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184948764 + ... + 185062987.

It is an arithmetic number, because the mean of its divisors is an integer number (922716806550).

Almost surely, 2^{21132111123112} is an apocalyptic number.

21132111123112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21132111123112 is an abundant number, since it is smaller than the sum of its proper divisors (23158295591288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21132111123112 is a wasteful number, since it uses less digits than its factorization.

21132111123112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370011838 (or 370011823 counting only the distinct ones).

The product of its digits is 144, while the sum is 22.

It can be divided in two parts, 2113211 and 1123112, that added together give a palindrome (3236323).

The spelling of 21132111123112 in words is "twenty-one trillion, one hundred thirty-two billion, one hundred eleven million, one hundred twenty-three thousand, one hundred twelve".